<template>
  <div class="count">
    <h2>当前求和为：{{sum}}，放大10倍后：{{bigSum}}</h2>
    <h3>欢迎来到：{{school}}，坐落于：{{address}}，大写：{{upperSchool}}</h3>
    <select v-model.number="n">
      <option value="1">1</option>
      <option value="2">2</option>
      <option value="3">3</option>
    </select>
    <button @click="add">加</button>
    <button @click="minus">减</button>
  </div>
</template>

<script setup lang="ts" name="Count">
import {reactive, ref, toRefs} from "vue";
  //引入useCountStore
  import {useCountStore} from '@/store/count'
import {storeToRefs} from "pinia";
  //使用useCountStore，得到一个专门保存count相关的store
  const countStore = useCountStore()
  //storeToRefs只会关注store中的数据，不会对方法进行ref包裹
  const {sum,school,address,bigSum,upperSchool} = storeToRefs(countStore)
  // const {sum,school,address} = toRefs(countStore)

  //数据
  let n = ref(1)//用户选择的数字

  //方法
  function add(){
    countStore.increment(n.value)
  }
  function minus(){
    countStore.sum -= n.value
  }
</script>

<style scoped>

  .count {
    background-color: skyblue;
    padding: 10px;
    border-radius: 10px;
    box-shadow: 0 0 10px;
  }
  select,button {
    margin: 0 5px;
    height: 25px;
  }
</style>